Employees at Atlanta City Hall are being handed instructions as they come through the front doors to not turn on computers or log on to their workstations.
Friday's action comes as city officials are struggling to determine how much sensitive information may have been compromised in a Thursday cyber attack.
LISTEN | Atlanta Police Chief Erika Shields discusses the cyber attack
The city has also received demands that it pay a ransom of an unspecified amount, officials confirmed. But officials had yet to make a determination if it would pay the ransom.
Hartsfield-Jackson International took down the wi-fi at the world's busiest airport after a cyber attack on the city.
The Atlanta airport’s website said after the cyber attack that security wait times and flight information may not be accurate.
-- Check back with AJC.com for updates.
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Credit: Jason Getz / Jason.Getz@ajc.com